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-5(x + 2y) +15(x + 2y); use x = 7 and y = -7​

-5(x + 2y) +15(x + 2y); use x = 7 and y = -7​
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3 votes
-5(x + 2y) +15(x + 2y); use x = 7 and y = -7​

User Jmazin
by
7.8k points

1 Answer

2 votes

Answer:

Explanation:

-5(x + 2y) + 15(x + 2y)

substitute in: -5(7 + 2*-7) + 15(7 + 2*-7)

= -5(7- 14) + 15(7 + -14)

= 35 + 70 + 105 + 210

= 420

User Tas
by
8.4k points
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